title: Localized nodular synovitis of the infrapatellar fat pad.
abstract: We report a case of localized nodular synovitis of the infrapatellar fat pad impinging on the patellofemoral joint causing limitation of extension. Arthroscopy involved use of a superolateral portal because location of lesion hindered access via a conventional anterior portal. The infrapatellar mass impinged in the patellofemoral joint upon knee extension and retracted upon flexion. Superior-superior triangulation allowed for complete excision of the mass.
authors.affiliation: Department of Orthopedic Surgery, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.
authors.forename: Jong-Hoon
authors.initials: JH
authors.lastname: Park
authors.forename: Kyung-Han
authors.initials: KH
authors.lastname: Ro
authors.forename: Dae-Hee
authors.initials: DH
authors.lastname: Lee
keywords: Arthroscopy; infrapatellar fat pad; localized nodular synovitis